Back in high-school Little League, my coach congratulated me for "drifting around out there", in out-field, by which technique, I didn't drop as many balls. Now, having thought it through, recently, I think the advantage, of "drifting around", is that that technique, while you're waiting for the pop-fly to land, increases your visual baseline, giving you a 'super-stereo-vision' view of the ball. So fast-and-friendly (if not necessarily necessary) advice for, say, fathers of Little Leaguers: